000202185 001__ 202185
000202185 005__ 20181203023627.0
000202185 0247_ $$2doi$$a10.1039/C4SC02073A
000202185 022__ $$a1478-6524
000202185 02470 $$2ISI$$a000344376400047
000202185 037__ $$aARTICLE
000202185 245__ $$aControlling conjugated polymer morphology and charge carrier transport with a flexible-linker approach
000202185 260__ $$aCambridge$$bRoyal Soc Chemistry$$c2014
000202185 269__ $$a2014
000202185 300__ $$a6
000202185 336__ $$aJournal Articles
000202185 520__ $$aThe Stille-coupling polymerization of a short conjugated polymer with an aliphatic linker was used to demonstrate a prototype in a new class of polymer semiconductors wherein the conjugation segment length and the length of the entire chain can be independently controlled. Subsequent thermal, morphological, and 2D grazing-incidence crystallographic analysis revealed this prototype polymer's ability to exhibit distinct thin-film morphologies without changing the molecular weight. In field-effect transistors this unique ability gave rise to an improvement of the charge carrier mobility from fibril-type (0.01 cm(2) V-1 s(-1)) to terrace morphologies (0.04 cm(2) V-1 s(-1)). When compared to a fully-conjugated, high molecular weight polymer, these differences afforded insight into the roles of inter-and intramolecular charge transport in the film, highlighting the importance of chain self-assembly on charge transport. Overall, our results indicate that employing linkers is a promising route to advance morphology control in semiconducting polymer based devices.
000202185 6531_ $$athin-film transistors
000202185 6531_ $$afield-effect mobility
000202185 6531_ $$amolecular-weight
000202185 6531_ $$aPolymer semiconductor
000202185 700__ $$0246238$$aGasperini, A.$$g203555
000202185 700__ $$0247309$$aBivaud, S.$$g236971
000202185 700__ $$0244210$$aSivula, K.$$g178220
000202185 773__ $$j5$$k12$$q4922-4927$$tChemical Science -Royal Society of Chemistry-
000202185 909C0 $$0252414$$pLIMNO$$xU12534
000202185 909CO $$ooai:infoscience.tind.io:202185$$pSB$$particle
000202185 917Z8 $$x178220
000202185 917Z8 $$x178220
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000202185 937__ $$aEPFL-ARTICLE-202185
000202185 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000202185 980__ $$aARTICLE